15913620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{419}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 48615840

約数和(自身を除く): 32702220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 419, 422, 633, 838, 844, 1055, 1257, 1266, 1676, 1899, 2095, 2110, 2514, 2532, 3165, 3771, 3798, 4190, 4220, 5028, 6285, 6330, 7542, 7596, 8380, 9495, 12570, 12660, 15084, 18855, 18990, 25140, 37710, 37980, 75420, 88409, 176818, 265227, 353636, 442045, 530454, 795681, 884090, 1060908, 1326135, 1591362, 1768180, 2652270, 3182724, 3978405, 5304540, 7956810, 15913620]

約数ペア:

[(1, 15913620), (2, 7956810), (3, 5304540), (4, 3978405), (5, 3182724), (6, 2652270), (9, 1768180), (10, 1591362), (12, 1326135), (15, 1060908), (18, 884090), (20, 795681), (30, 530454), (36, 442045), (45, 353636), (60, 265227), (90, 176818), (180, 88409), (211, 75420), (419, 37980), (422, 37710), (633, 25140), (838, 18990), (844, 18855), (1055, 15084), (1257, 12660), (1266, 12570), (1676, 9495), (1899, 8380), (2095, 7596), (2110, 7542), (2514, 6330), (2532, 6285), (3165, 5028), (3771, 4220), (3798, 4190)]